I want you to notice that this spectrum is interrupted by dark lines called spectral lines.
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2. 科学家应该尽早对指甲之下的暗线进行调查。
Dark lines beneath the nail should be investigated as soon as possible.
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3. 黑暗线从日本和东俄罗斯流到美国和加拿大。
The line of darkness flows from Japan and Eastern Russia to the United States and Canada.
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4. 谷底汹涌的水体将光散射到各个方向，形成了一条暗线。
The rough waters in the trough scatter light in all directions, forming a dark line.
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5. 我检查房间里有无暗线，但房间里干干净净的什么也没发现。
I checked the room for concealed wiring, but it was as clean as a whistle.
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6. 在哈勃只有图片(无图这里)，尘土飞扬的区域显示为暗线。
In the Hubble-only image (not pictured here), the dusty regions appear as dark lanes.
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7. 从电源盒引出的直流电源线及连机线，应尽可能布暗线，明线须用卡固定；
The DC power supply wire and connector wire drawn from power supply box should wiring buried wire as possible, exposed wire must be fixed by holding latch ;
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8. 甲下暗线应尽早进行检查，因为其往往由黑色素瘤-恶性度最高的皮肤癌引起。
Dark lines beneath the nail should be investigated as soon as possible. They are sometimes caused by melanoma, the most dangerous type of skin cancer.
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9. 几乎所有的女性都会看到一条从肚脐往下到骨盆位置形成了一条被称做“黑中线”的暗线。
Almost all women will notice a dark line form from their bellybutton down to their pelvis called the "linea negra."
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10. 但在45分钟的日光照射之后，一道黑暗线就出现在地球上了，它将地球分割为白天和黑夜两个地区。
But after 45 minutes of daylight, a dark line appears on the planet, dividing Earth into night and day.
In the enlarged portion of the above screenshot, you can see that most of the time this contrast is just a lightly colored 1-pixel line next to a dark 1-pixel line.
Designed by a master of industrial design Dr Kenneth Grange, the cool, dark lines of the 600 series cabinet are perfect partner for contemporary furniture and interior design Settings.
